kingsea 32P Metal Steel Pinion Gear 18T 19T 20T 21T with Hex Key Compatible with 0_8 Metric Pitch5mm Shaft for 18 Rc car

This is hardened steel 18T 19T 20T 21T tooth, 32 pitch pinion gear Suitable for 1/8 RC Car motors with a 5mm shaft Feature Hardened steel to increased wear resistance and improve fatigue life Nitrided to enhanced hardness corrosion resistance Tooth count: 18T 19T 20T 21T Tooth pitch: 32 pitch?0.8 module is the same as 32 standard? length: 14mm For shaft: 5mm Package include: 1 X 32p 18T pinion gear 1 X 32p 19T pinion gear 1 X 32p 20T pinion gear 1 X 32p 21T pinion gear 5 X Screws 1 X Hex Key Make sure you thread lock the grub screw. They are hard to find when they fall out. Larger gears will result in higher speeds while smaller gears provide more torque. For quicker acceleration go for a smaller pinion gear (with fewer teeth) and larger spur gear (with more teeth). Your car will accelerate off the mark very quickly with more torque, and you'll also benefit from cooler running temperatures, extending the life of your motor and ESC. How to install the pinion gear: You will probably need to loosen the motor a bit, in order to fit the pinion gear on. Make sure you lock it in place on the flat portion of the motor shaft. When you are tightening it back up, make sure you leave about a gap between the pinion gear and the spur gear. That gap will be very small. It should be about the thickness of a piece of paper. At last, if the motor you are using has a 1/8 inch shaft with an 32p spur gear then it should fit... It's not about what vehicle you have necessarily...